Contract Number:
071579
Estimated Cost Range:
$1,950,000 to $2,380,000, plus Washington State Sales Tax (WSST)
Procurement Summary:
The Work required for this Project includes: Permeable Reactive Barrier (PRB): constructed by conventional excavation and biopolymer slurry methods, excavated soils will be transported off site for disposal at LRI, the PRB trench will be backfilled with a combination of sand and zero-valent iron mix, trench area will be patched with hot mix asphalt.
Stormwater Conveyance Improvements: the following work is for both 30 and 36 inch pipe alignments; removal of accumulated debris and solids in the pipe, trenchless pipe repair using cure-in-place-pipe (CIPP) methods, demolition existing spill containment vaults, installation of new manhole structures and owner provided stormwater vaults, installation of inline check valve tide gates and repairs to the rip rap outfall pads.
Stormwater Conveyance Improvements: the following work is for both 30 and 36 inch pipe alignments; removal of accumulated debris and solids in the pipe, trenchless pipe repair using cure-in-place-pipe (CIPP) methods, demolition existing spill containment vaults, installation of new manhole structures and owner provided stormwater vaults, installation of inline check valve tide gates and repairs to the rip rap outfall pads.
Notes:
Questions Due July 26, 2022.
See attached driving directions for pre-bid location.
See attached driving directions for pre-bid location.
Bids Due:
Pre-Bid Close:
Documents: